Preheat oven to 350 degrees. Spread pecans on a rimmed baking sheet, and toast in oven until golden and fragrant, 10 to 15 minutes. Set aside.

Meanwhile, in a large skillet over medium heat, cook bacon, stirring occasionally, until browned and crisp, 6 to 8 minutes. Transfer to a paper-towel-lined plate. Pour off all but 3 tablespoons fat from skillet.